User cannot launch the desktop. You may see following error during the launch sporadically:

Transaction ID:<transaction id>
Resource: <name of the resource>
Platform: Windows 11 Enterprise
App Version: Citrix Workspace app 25.11.10.50
Error Message: Failed to connect to the server (global-all.g.nssvc.net:443) for your session '<name of the resource>'. Try again or contact your Helpdesk with the following information:

An existing connection was forcibly closed by the remote host.
(Error code: 2064.10054)
Recommendation: Contact your system administrator for assistance.
LeaseSyncLastSuccess: XXXXXXXXXXXXX
LeaseSyncLastSyncStatus: Succeeded

You may see following error on Workspace App CDF trace logs:

OnGeneralErrorPostConnected : Protocol Error 10054 occured, Error Message: Network issues are preventing your connection.  Please try again.  If the problem persists, please call your help desk. (Socket Error 10054)",""

The issue is caused as Ticket Validation failure occurs. The Ticket validation failure occurs due to 60 seconds delay in creation and redemption.

Workspace STA Ticket time to live is 60 seconds.

The CDF trace would indicate a gap more than 60 seconds between downloading the ICA file and Connection to Gateway Service.

The issue is caused by the Antivirus software running on the User's machine slowing down the Citrix Workspace App processes. 

The mitigation is to uninstall Antivirus software which is slowing down the Citrix Workspace App processes.

We recommend excluding the paths specified in the link below so that Antivrus software doesn't interfere with the Citrix Workspace App processes:

https://docs.citrix.com/en-us/tech-zone/build/tech-papers/antivirus-best-practices.htm#workspace-app 

User cannot launch the desktop. You may see following error during the launch sporadically:

Failed to connect to the server (global-all.g.nssvc.net:443)
(Error code: 2064.10054)